Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

¹ØÓÚACCESSÏÂOleDbParameterµÄʹÓÃ

½ñÌ죬»¹ÊÇÔÚ×öÄǸöÏîÄ¿£¬ÒÀȻʹÓÃÍù³£µÄsqlhelperÓ÷¨£¬Íù³£µÄÊý¾Ý¿â²Ù×÷À࣬µ«ÊÇÆ«Æ«µ÷ÊÔ²»³É¹¦£¬¶øÇÒ×îÖØÒªµÄÊÇ£¬Ëü²»±¨´í
ÖÐÎç³Ô·¹»ØÀ´£¬±¾À´Ïë´òËã˯¸öÎç¾õµÄ£¬µ«ÊÇÏîÄ¿Ì«½ôÆÈÁË£¬ÓÚÊÇÓÖ¸ú³µ³µÑо¿ÁËÒ»ÖÐÎ磬×îºó£¬·¢ÏÖÈç¹û²»ÓÃ@²ÎÊý´«µÝµÄ»°£¬ÊÇÕý³£ÔËÐеģ¬ÓÚÊÇ°Ù¶ÈÁËһϣ¬ÄÇЩÈË˵ҪÓÓ£¿”µ±Õ¼Î»·û
ÎÒÏëÏë¾õµÃ²»ÕýÈ·£¬ÓÚÊÇ×öÁËÒ»¸öʵÑ飬·¢ÏÖÄÇÊǼٻ°
ÍíÉÏ»ØÀ´£¬¹úÁú°ïÎÒ½â¾öÁËÕâ¸öÎÊÌâÁË
Ô­À´£¬sqlhelper¶Ô²ÎÊý¸³ÖµµÄʱºò£¬ÊÇÑ­»·À´¸³ÖµµÄ£¬Ò²¾ÍÊÇ˵£¬string sql="";ÖеIJÎÊýλÖã¬Óë
 OleDbParameter[] paras ={ new OleDbParameter("@introduction",company.Introduction),
                                  new OleDbParameter("@company_ID",company.Company_ID)
                                    };ÖвÎÊýµÄλÖÃÒª¶ÔÓ¦£¬
ÆäʵÏëÏëÒ²ÊÇ
²ÎÊý¸³Öµ´íÎó£¬×î¶à¾ÍÖ´Ðв»ÕýÈ·£¬²»»á³öÏÖ±¨´íµÄ
Ïȹ«²¼´úÂë°É£¡£¡£¡
public bool Update_Company(Company company)
{
bool flag = false;
string sql = "update tb_company set introduction=@introduction where company_ID=@company_ID";
OleDbParameter[] paras ={ new OleDbParameter("@introduction",company.Introduction),
new OleDbParameter("@company_ID",company.Company_ID)
};
int res = SqlHelper.doExecuteNonQuery(sql, paras);
if (res > 0)
{
flag = true;
}
return flag;
}
public int doExecuteNonQuery(string sql,OleDbParameter[] prams)
{
cmd = new OleDbCommand(sql, GetConn());
// cmd.Parameters.Add("introduction", OleDbType.VarChar, 1000, "introduction").Value = new Company().Introduction;
//cmd.Parameters.Add("company_ID", OleDbTyp


Ïà¹ØÎĵµ£º

java access sql

JDBCÁ¬½ÓMySQL
¼ÓÔؼ°×¢²áJDBCÇý¶¯³ÌÐò
Class.forName("com.mysql.jdbc.Driver");
Class.forName("com.mysql.jdbc.Driver").newInstance();
JDBC URL ¶¨ÒåÇý¶¯³ÌÐòÓëÊý¾ÝÔ´Ö®¼äµÄÁ¬½Ó
±ê×¼Óï·¨£º
<protocol£¨Ö÷ҪͨѶЭÒ飩>:<subprotocol£¨´ÎҪͨѶЭÒ飬¼´Çý¶¯³ÌÐòÃû³Æ£©>:<da ......

JTAGÏÂÔسöÏÖ£ºCan't access JTAG chain Ôõô°ì


µ±È»£¬altera FPGA µÄJTAGºÍASÏÂÔØģʽÊǵÃÕâô½Ó¡£µ«ÊÇ£¬ÎÒÓиöСÌáÐѸø¸÷λ£ºÇë×¢ÒâVCCAµÄ¶¨Ò壬VCCAÊÇͬʱ¸øFPGAËøÏ໷·¹©µçµÄ2.5V¡£ÔÚËøÏà»·Òý½ÅÉÏÎÒ½ÓÓÐ0.01uFµÄµçÈÝ£¬¿ÉÒÔÏëÏóËüÄܹ»ÒƳý´óÔ¼100MHzÒÔÉϵÄÉäƵÄÜÁ¿£¬Òò´Ë¶ÔJTAGÏÂÔØ¿ÚµÄÆäÉÏÀ­×÷ÓõÄVCCAÓ°Ïì²»´ó£¨JTAGÅäÖÃģʽµÄ´ø¿í²¢²»¸ß£©£¬0.01uFµÄµçÈݲ»¿ÉÄÜ¶Ô ......

NTDLL.DLL): 0xC0000005: Access Violation ½â¾ö·½·¨


ÔÚ±àд×Ô¼ºµÄdll³ÌÐòµÄʱºò£¬ÏÈ¿ªÊ¼ÔÚµ÷ÓÃdllµÄexeÉϳöÏÖ(AVIDLL.DLL): 0xC0000005: Access Violation£¬²»ÊǺÜÃ÷°×£¬ÎªÊ²Ã´»á³öÏÖÕâ¸öÎÊÌâ¡£
ÔÚÄÚ²¿½øÐе÷ÊÔµÄʱºò·¢ÏÖ£¬Êǵ÷ÓÃÁËnew²Ù×÷·ûµÄÔµ¹Ê¡£
ºÜ²»Àí½â£¬ÔÚdllÖе÷ÓÃnew²Ù×÷·û»á³öÏÖÕâôһ¸öÎÊÌ⣬ÍøÂçÉÏËÑË÷£¬ÔÚ΢ÈímsdnÂÛ̳£¨¾ßÌåµØÖ·£ºhttp://forums.msdn.mic ......

Sql Server ºÍ Access ²Ù×÷Êý¾Ý¿â½á¹¹SqlÓï¾ä

н¨±í£º
create table [±íÃû]
(
[×Ô¶¯±àºÅ×Ö¶Î] int IDENTITY (1,1) PRIMARY KEY ,
[×Ö¶Î1] nVarChar(50) default 'ĬÈÏÖµ' null ,
[×Ö¶Î2] ntext null ,
[×Ö¶Î3] datetime,
[×Ö¶Î4] money null ,
[×Ö¶Î5] int default 0,
[×Ö¶Î6] Decimal (12,4) default 0,
[×Ö¶Î7] image null ,
)
ɾ³ý±í£º
Drop table [±í ......

ACCESSÕÒ²»µ½¿É°²×°µÄISAM

ÔÚдÕâƪ²©ÎĵÄʱºò£¬ÎÒÕæµÄÈ̲»×¡½ÐÒ»Éù£¬ËûÂèµÄ±ä̬£¬½ñÌì×öÒ»¸öÍøվʱºò£¬ÓÉÓÚÒªÓõ½ACCESS£¬ÄǾÍÓÃÁË£¬°Ñ֮ǰµÄÁ´½ÓÓï¾äCOPY+C¹ýÀ´
¿´¿´ÓÐʲôÎÊÌâ¡£
string connstr = "Provider=Microsoft.Jet.OLEDB.4.0;
Data Source="+System.Web.HttpContext.Current.Server.MapPath("window2003.mdb");
Ò»¿´£¬Ó¦¸ÃûʲôÎÊÌ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ